CVE-2018-18834 — CRITICAL (9.8)

Vulnerability Description

An issue has been found in libIEC61850 v1.3. It is a heap-based buffer overflow in BerEncoder_encodeOctetString in mms/asn1/ber_encoder.c.

CVSS Score

9.8

CRITICAL

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Mz-Automation	Libiec61850	1.3

Related Weaknesses (CWE)

CWE-787

References

https://github.com/fouzhe/security/tree/master/libiec61850ExploitThird Party Advisory
https://github.com/mz-automation/libiec61850/issues/81ExploitThird Party Advisory
https://github.com/fouzhe/security/tree/master/libiec61850ExploitThird Party Advisory
https://github.com/mz-automation/libiec61850/issues/81ExploitThird Party Advisory

FAQ

What is CVE-2018-18834?

CVE-2018-18834 is a vulnerability with a CVSS score of 9.8 (CRITICAL). An issue has been found in libIEC61850 v1.3. It is a heap-based buffer overflow in BerEncoder_encodeOctetString in mms/asn1/ber_encoder.c.

How severe is CVE-2018-18834?

CVE-2018-18834 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2018-18834?

Check the references section above for vendor advisories and patch information. Affected products include: Mz-Automation Libiec61850.